The pungent scent of crazy

Well, I finished the book yesterday. It wasn't good. Sometimes it wasn't clear who said what. I'd re-read over passages to follow what was who and where was how. A bit annoying. Overall, it was a satisfactory quick read.

The main character, Willadene, has the "nose". She can pick apart any smell but most amazing is her ability to smell evil emanating from people. (What kind of logic governs that type of diagnosis? I guess her morals are physically linked to the membranes in her nose) It is suppose to be a horrible, gut wrenching stink. Nice ability but would you be able to handle it? You would know all of a sudden your co-worker sitting beside you is evil.

I'd like to read a book where someone can sniff out crazy. I wonder what that would smell like? Licorice and lard?